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Power Strokes
6.4 Aftermarket
New Gearhead tunes: Now what?
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[QUOTE="DWhite, post: 1213406, member: 13290"] The 4th file will be engine file and should be something env2 or something like that. Straight from larz at gearhead. Anything above wot and all files should be the same. The Economy and Regular file will lock the converter in 3rd gear on up. The Economy tune should shift and lock the converter 200-300 rpms sooner than the regular file. The Hybrid file will only lock the converter in 5th and OD. It tries to keep the rpms above 1800, that file was really intended for the non vgt turbos and trucks with factory gearing and large tires. [/QUOTE]
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New Gearhead tunes: Now what?
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